For many people, edamame, or the soybean, provides beneficial effects such as reducing the risk of heart disease, osteoporosis, and even some cancers, and only rarely can cause constipation, bloating or nausea, states WebMD. Conversely, for people with soy allergies, consuming edamame can result in abdominal pain, diarrhea, nausea, fever and trouble breathing, states Healthline. Soy protein can aggravate certain conditions, including cystic fibrosis, hypothyroidism and diabetes. Excess soy consumption may even increase the chances of bladder and endometrial cancers.
Though people often eat edamame simply boiled and salted, it is also a common ingredient in many processed foods, including many sauces, cereals, broths and artificial flavorings, notes WebMD. Therefore, most of us consume more of the product than we realize. This also means that people with allergies must be well informed of such products in order to avoid accidental ingestion. It is important to note that up to half of children with milk allergies also develop soy allergies.
Soy is also used as a dietary supplement for certain conditions, but it is important not to take these supplements for longer than six months. This warning is especially pertinent to women because, according to WebMD, over-consumption can contribute to abnormal, and potentially pre-cancerous, growths in the uterus.